PIK3CA and colorectal cancer: Clinical trials database holds information regarding mutations of KRAS, NRAS, and BRAF. In NCBI database genetic testing registry 33 genes are listed for colorectal cancer detection in 584 tests: AKT1, APC, AXIN2, BUB1B, CRCS6, CRCS7, CTNNB1, DCC, DLC1, EP300, EPCAM; FGFR3, FLCN, GALNNT12, MLH1, MLH3, MSH2, MSH3, MSH6, MUTYH, NRAS, NTHL1, PIK3CA, PMS1, PMS2, POLS1, POLE, RNF43, SMAD7, SRC, TGFBR2, TP53, UGT1A1 (https://www.ncbi.nlm.nih.gov/gtr/).